Ore-reducing furnace.



UNITED STATES.

PATENT ornioia ionN rioNEs, or iRoN Mouu'rAing-Miciiiciiu, AssiGNoR or oNE-iiALr'To eE'oReEA. sfr. CLAIR, or DULUTiL- MINNESOTA oREfR-EDCING' 'ieuitiiliia Specification fLetteisIEatexih Patented Ju1e`23,

.A'ppii'eauon nieaiieemifer 23,1907. semi un. 507,761.

,Toallwhom it may concern.'

Beit known that I,- J OHNQTJJONES, a-.citizen of the United` States, residing at `'Iron 'Mountain,fin the countyof Dickinson .and State of Michigan, r have inventeda new'and useful Improvement in Ore-Reducing Fur# l `-naees, of which the following is a` 4specitication. .My invention relates, more particularly, to

onthe furnace yapplication for Letters Patent, -SerialNo,`

an improvement, in the 'nature of `an adjunct; forming the subject of iny lbase with a` .cooling'chamber -andhavin .alue-coniie'ctioiifnelar its :base with afcar o'- naceous-fuel-burnmfg furnace at a point 'be-,p

, fuel, from the upper section oftlie chamber-,vnl

' incandescent present invention is .not necessarily limited,l or its -u-se, ,to-thatlparticulai' construotionpf ore-reducing furnace.

Generally described, aforesaid furnace involves anote-'stack communicating at its tween its 'uppe'ltand lower sections to. ada t Athefliieftotake 'andnmix thegases Jfrom t e fuel inthe lower sectiono'f the furnace-chamber,' and the, volatilizedhydro cai-bons, distilled-by the heat ofthe burning,

and direct the mixture, .to theV exclusion of air, upward through the column. of ore in the stack, with the result Vof reducing the O Xygen in theoie andfleaviiig the iron or .other-metal. .in a metallic state. f

' :The resultant-4 inetalsrequiresto be "se arated fromthegriass ofiother iiiaterialin t e stack, 11oadapt it to be prepared by melting'.

scrap furnace; and it 'niust be shielded against -re-oxidation` `while undergoing 'separation andtransfer Vto the sinelting furina-ce.' A The object ofgin'yinvention is .to provide,

the

and eile'ctive means for pulverizing the treated orc disohargedfro'm the-stack, separating thenietalfronithv ganglio/'of the p 'ulverized diret-tin gf Y the 'sep arated Jn'fietal product; -a'nd to 1' a sincltiiig'- furnace, 'all under closure against. ',-the contaminating action on, the metall of the atmosphere.. 'lliisobje'ct is arf ooifnplislied bygthe apparatus the accompanying drawing, which is a-.vicw

.- magnetic action ofthe separator: Gn"

bottom of theehainbertis provided an open- .l hearth'iurnacefindicatedat 16, which is con- 'nected with 'the L'magnetic separator through for use, `as

hopper-device -17 containing a:

it in ,anopen-heartli furnace,` or' During, the crushing and tions, wlnil'e the vreducing action is proceeding illustrated. in

.v-par'ts of whiehare represei'ited,intheinain,

conventionally.4 1 1 The 1 furnace l has the.-ilue-eonnectionA)v orestack 3,'-whichniay rise to a height of ,a hundred'feetf, 'more orv less.

'the b`ase ;offtliefstacli and 'extending toa considerable depth below itis au close chain# roof Q5 'of which' isI Vjust above a3 gas outlet opening-fi4 'adjacent stack-Wall cen-.- taining a'valvep'? vadapted "to be opened and closed .bytrotati'ng it.

- oreediscliarge outlet pair of ordinary power-driven crushing-rolls 11, the motor vingof side of theicliamber 4. The dischargezfro'in orv chute 12 upon a rotaryinagnetic-gsepara tor, indicated. at 113, of any known'- suitable construction and 'crushin.g-iolls froni 'without the* chamber. Below theseparator isa hopper-.device 1.4 containing in its closed lower end aiotary -which is carried oi'by-tlie conveyer, va

a chute-like. rotary sliut-oH-.valvejlS and supportinga scraper .1 9 which contacts .witlitlie/'peripberyof Y the rotary separator.'

inthe` stack,- thelva'lvef is .-opento'adinit from the :stack through the opening carand whenee the. pulifferiaed materi, al feeds by.

ber 4, of relatively large 'diniensions,^ .the

.The lower end ofthe? stack is `formed as a chiite- 8 leading tothe 9, which is 'covered by a hopper-device orchute- 10 discharging toav (not shown) driving .them bef anysuitable variety and located out `the rolls, takes place through a'hopp'er-device conveyer,A indicated at l15,' in position i to4 rel f ceive'the noninagneticlpart of 'the.-...ga,iigue,

b onic o Xid gasto iiiaint'ai'n"I an' atmosphere;

must be [operatedupon the rolls ll'jfwhicli crush itto-a powderbetween its'ends Withthe base-portion ofthe 60 VAdjacent to f which is driven, like the L l from which the" metal is1 separ`a ted i by" the arrow vfurnace 16,.A to be smelted and thence tapped rec'ting theL-orefto it opening, for the purpose set forth:

-. ore-'stack provided withV a .ore-stack provided with a ,charge-.o e'ningleads,

oii` and thereafter treated inusual ways.

' What I claimas new, and desire' te-secureV by Letters Patent, is

1. In combination, an ore-reducing ur'- nace of the character described having an y discharge-opening for the reduced ore, a close chamber communicating with the stack throu h a gas-outlet opening therein, and into Wj and 'an vore-separator means thereinv for dif'rom said discharge in said c amber with In combination, an nace of the character describedvhaving an l discharge-opening for the reduced ore,` a close nicating With the stack throu h a gas-outlet opening ltherein,.and into wich said discharge-opening leads, and an ore-crusher and a separator in said chamber with 'means therein for directing theoreto them succes sively, for the purpose set'i'crth.

3. In combination, an ore-reducing hir.

nace of the character described having an ore-stack provided with a discharge-opening for the reduced ore,a close chamber communicating with the stackthrough a gas-outlet opening therein and into which said disf charge opening leads,` an ore separator in said chamber with means therein for directing the ore to it from said dischargefopening, and a smelting-furnace to which said separator discharges, for the purposeset forth. I A' of the magnet is ch said ldis-- chamber commu- 4. In combination, an ore-reducing 4furnace of the character described having an ore-stack provided with a discharge-chute in its base for the reduced ore, a close chamber communicating 'with the stack through a .gas-outlet openin in its lower part and into which said chute Ieads, and an ore-se arator below the plane of said chute in sai chamber with ravity-feeding means therein between saiLI separator and chute, for the purpose set forth.

5. In combination, an ore-reducing fur- .naceof the character described having ore-stack provided'wit'h a disicharga-chute inA its base for the reduced ore, a close chamber communicating with the "stack "through a gas-outlet openinY in its lower part and into which said chute-I adsan ore-crusher andpa ber with ravitydmding`- means'.y therein for directing t, e -ore tolthem successively, and 4a' smelting-urn'ace .nection 4with said semarator,l for the purpose 'settoriali'.

y, 6. .In combination, -ore-reducin'g'fub nace of the character"described'having an .ore-stack provided witha discharge-chute in lits basel forthe' reduced ore, a closechamber 'adjacent to the stack and lcommunicating@therewith wall, an ore-crusher and aseparator, 'one be-y tendin -between said crushelzandseparator, a Sme ting-furnac'ein said.' chamber below the separator' vwith a ,chute extending between them, and a hopperI inthe chamber adjacentv to theseparator to receive the K. MQCORNWALL, R. A. SCHA'EFER.

through a -gasLoutlet opening in the stack "gang'uef discharge therefrom and provided separator, one below the other, in 'saidchm' v having-a gravity-feed cone,v

and extending belovsr the base of 

